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Rob - do a search on Linkwitz Transform. The first Google response has a good explanation. This forum has some good details as well. 1. Drop a Tumult in a 2.5 cu ft sealed box, add the Adire ADA1200 plate amp, set the Linkwitz Transform circuit to your taste, use the 2 band parametric eq to...

I built the Adire alignment as my first diy home sub and was quite happy with it in a room wider/longer and mostly open on the back but not as tall as yours. I used a QSC RMX2450, bridged at first with 2400W. After several "pops", I backed off and used a single channel giving 750 watts. Still...

Save the Tempests for the bedroom. Unless you really want a DIY setup, I'd drop the money on 2 Everests from Kyle and 2 QSC PLX3402 amps (or 4 PLX1602 amps). Plug it in and go. I bet you could reach in-car levels -- deeper and cleaner.

Mike - I built a 6 channel Leach amp (Dr. Marshall Leach, GaTech) and they sound excellent. 120W @ 8Ohm, 240W @ 4Ohm (with 2 more transformers), and it is stable to 2Ohms. He also has a design for the Leach Super amp that will put out 300W @ 8Ohm, stable to 2Ohm as well. I wish I had added...

I am using WinISD Pro to model this. While I have LEAP 5, I haven't really put it to good use yet. Maybe when Adire releases their new 6.5 mids.... The Stryke 18" PRs can be purchased with either 1600g or 2500g mass added. I bought the 1600g along with 900g of steel in a cylinder shape...

Luitz - The Tempest in the Adire alignment has a long smooth rolloff. In my large living room it sounds great. Not the boomy muddy sound I have heard from so many ported subs. And deep too. The Tumult using two 18" Stryke PRs (2500g mass) in a 5ft^3 box is much flatter, with a -3dB around...

Luitz - What is "Crazy bass" to you? Loss of vision? Difficulty breathing? Also I didn't read about any financial restrictions. One Tempest in the Adire alignment is pretty amazing. I was impressed with just one in a ~18x28x9 room with most of one side open to other parts of the house. I...

I must have missed those pictures.... :)

Proper calibration to me is when one's vision becomes blurred and one finds it difficult to breathe. :D Actually it does not sound that great when the low end overtakes the mids and highs -- the balance to a good sound is not there. But then there are those special times.... I like to think...

I have had that opinion about always wanting more than enough power. But since the Tumult was released I have read too many horror stories about fried Tumults. This has caused me to take a step back and ask the forum if using amps that would have trouble cooking my subs but still get them to...

I've been thinking about the same type of issue. I currently have two Tumults running off a RMX2450, with 750 watts pere sub. I don't think I should ever have a problem, but I don't think I'll ever get the full use from the Tumults. So assuming a sealed box (Qtc ~0.7) and you don't drive the...

Take a look -- 7+ inches of linear excursion. Adire Audio Parthenon Motor A new reference level has been set! :D :D :D

I have been looking at the same thing but would like some more opinions on SQ and volume relative to price, since in-walls are the only option for the in-laws, and the Dayton flagship would not set me back all that much. I don't like buying speakers without either much positive feedback or a demo.

After buying new furniture and rotating my room 90 degrees, I no longer have the space for a large sub. I currently have 2 Tumults and 2 PRs. I will order 2 more PRs to finish the second sub if I can find a place for them. I have two options: 1. The chair-and-a-half sits in the corner...

Brian - I want a system that will kick butt mainly for HT. So the front three and rear centers will be identical monopoles. I would like to mount these like a wedge between the wall and ceiling (8'). They will be crossed over at 80 Hz. But I want to be able to get a loud and clean 80 Hz. In...

I was very interested in building a 3-way HT system until the "rumor" of the Adire 6.5" mid with 13mm xmax. Now an MTM sounds pretty darn good. Or even without the second mid. I would still like to build a set of stereo 3-way speakers with a 12" or 15" side firing woofer, but HT first.

I was never impressed with ported boxes until I tried the Adire Tempest using the Adire alignment. Add a 250 watt plate amp from parts express and I believe you will be more than satisfied. It's not a Tumult, but it is an excellent sub. Tempest: $125 shipped from acoustic-visions 250W plate...

Gee-whiz, Dan. Did you grow horns or find a halo? What am I going to do with these two Tumults? I will call Ga Power tomorrow and have a 3-phase line run to my house. :D

Has anyone ever tried binding posts like these? Binding Posts I will never use speaker terminal inputs again after building several boxes using these binding posts. They easily handle 8 gauge wire (I used 8 gauge car audio power wire for my HT subs). Any reasons why I haven't seen these...

Tom, Until recently, I had never heard a ported system I thought sounded good, so I always stuck with sealed enclosures. Then I took a chance and built a ported enclosure with a Tempest using the Adire alignment. WOW! A ported box that sounded great. Tuned to ~16 Hz and I don't think much...

Wayne and Mike -- I understand the physics behind heat and air flow and agree in a sealed environment with one path in and one path out that pulling air out at the top is the ideal solution.. Most of the backing is off at the top so I can access the back of the receiver. This is my guess...

ClaudeL, Ever sit in a vehicle and lose the ability to see and breathe? .... :D

I am running a Tumult in a 5 ft^3 box with 2 18" PRs with 2500g and am currently bridged on a QSC RMX 2450 with no infrasonic filter. Still going strong, but very carefully! When I watch movies I set the gain at 9 o'clock (16dB gain). Music and I set it at 3 o'clock (30dB gain). This has...

I have a similar setup except I have backing on my cabinet. I put my receiver on the top shelf with about 4 inches of clearance. I mounted a 4 inch a/c fan on the back so that it blows air across the top of the receiver. It is plugged into the aux power supply on the back of the receiver that...

I'll second Dan's suggestion. Try making one ported box with the Adire alignment and run just the ported sub with LOTR or any other movie. At first I had 2400 watts on mine -- almost blew it out of the box. Unbridged it to 750 watts -- still pops. Could have been frequencies below the tuning...

I am running a Tumult in a PR enclosure with a QSC RMX 2450 bridged at the moment. When the second one gets fixed I will switch to one sub per channel. Not sure if 750x2 will be enough. Kinda makes me wish I had bought the PLX 3402 (1100x2), but I won't be sure until I hear both Tumults...

Has anyone compared these with the ButtKicker Shakers? Are they worth the few extra dollars, or would several BassShakers provide comparable results?

I've always thought many store-bought subs were missing the lowest octave, so I plann to build 2 Tumults with the 18" PRs tuned to ~16Hz. But now I'm beginning to think I will still be missing the lowest two octaves. What do you think it would take in terms of sealed Tumults with a LT to get...

I plan on using a Tumult in my Impala SS in a 3.0 ft^3 box tuned to 20 Hz (tuned low, but that is the sound I am looking for). Check out some other forums that Adire supports and you will find a large amount of info about Tumults ported in cars.